#include <Eigen/Dense>
#include <iostream>

using namespace Eigen;

int
main()
{
	Matrix2d a;
	a << 1, 2, 3, 4;
	Vector3d v(1, 2, 3);
	std::cout << "a * 2.5 =\n" << a * 2.5 << std::endl;
	std::cout << "0.1 * v =\n" << 0.1 * v << std::endl;
	std::cout << "Doing v *= 2;" << std::endl;
	v *= 2;
	std::cout << "Now v =\n" << v << std::endl;
}
